基于NDS數(shù)據(jù)格式的導航系統(tǒng)的設(shè)計與實現(xiàn)
[Abstract]:With the rapid development of various fields of social life in the 21 century, the service industry has become the focus of people's needs in people's daily life. What plays a major role in people's travel is the emerging navigation service. Although navigators abound in the market at present, the popularity of navigation services has brought higher demand and technical requirements. The increase of people's demand for information acquisition leads to higher requirements for data access. Nowadays, the data access of navigation system is slow, the efficiency of data update is not high and the personalized user experience is not rich enough. In order to solve the increasing problems in navigation service, the system is divided into five modules according to the software engineering method: electronic map viewing, information query, intelligent navigation, 3D environment virtual and gesture command. Firstly, each requirement is briefly analyzed and the use case diagram is given, and then the architecture design is determined by the overall analysis of the system. MVC structure is used to separate the data, view and logic control. Then the data access efficiency and expansion performance of the system are improved by using the new data standard NDS format data. Then the functional modules of the system are analyzed and designed in detail, and the corresponding functional flow chart is given. In the process of system implementation, 3D virtual technology is adopted, which is more stereoscopic in system vision and provides better service experience for users. The NDS navigation system implemented in this paper supports the information display of electronic map, the query of information and the function of intelligent navigation, as well as the personalized information setting and saving and the simulation of 3D effect. When the user travels, the system can carry on the navigation service comprehensively, efficiently and conveniently, saves the time and the resource consumption as well as improves the efficiency, and brings the positive significance to the travel.
【學位授予單位】:華中科技大學
【學位級別】:碩士
【學位授予年份】:2014
【分類號】:TN96;TP311.52
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